Showerhead audio speaker



FIG. 1 is a front, right side and bottom perspective view of a showerhead audio speaker showing the new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof; and,

FIG. 5 is a bottom plan view thereof.

The features shown in broken lines form no part of the claimed design. 

CLAIM The ornamental design for a showerhead audio speaker, as shown and described. 